Indicator or measuring gage for disk records



0. BOEHNERT.

INDICATOR 0R MEASURIIIIG GAGE FDR DISK RECORDS.

APPLICATION FILED APR. I9, 1920.

Ptllid NOV, 29, 1921:.A

IJN\ MIU@ Am .QI

UNITED STATSY PAT OTTO BOEHNERT, F CHICAGO, ILLINOIS, ASSIGNOR'TO VITANOLA. TALKING MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

INDICATOR on 'MEASURING GAGE Fon'nrsk RECORDS.

fspecication of Letters Patent.

Patented Nov. 29, 1921.

Application ledApril 19, 1920. SerialiNo. 874,914.

To all whomz't may concern Be it knownthatl, OTTO BOEHNERT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Indicator or Measuring Gages for Disk Records, of which the following is a specification.

This invention relates to improvements in measuring gages .particularly adapted for use with disk playing machines for ascertaining or measuring the exactl point with respect to the roove or Apiece on the disk at which it is desired that theautomatic brake. or stop device shall become effective to stop the playing of the record.

A further object vis to provide an iinproved gage or indicator of this character adapted for use with different types of records, that is with records having what is known as lateral sound waves as well as records having what` is known as hill and dale sound waves.

To the attainment of these ends and the accomplishment vof other new'and useful objects as will appear the invention consists in the features of novelty in substantially the construction, combination and arrangement of the several parts hereinafter more fully described and claimed vand shown in the accompanying drawing illustrating this invention and in which- Figure lis a top plan view of a portion of a disk record having a device of this character applied'thereto and also illustrating' a portion of a brake or stop mechanism.

' Fig. 2 is a plan view of the side of the indicator or vmeasuring gage opposite to that shown in Fig. 1. i

Referring more particularly to the-drawing the numeral 10 designates-a disk record 'of the ordina-ry and vwell known type which is mounted to revolve with the usual support and which latter is provided with an upwardly projecting post '11 that projects through the usual aperture at the center of the disk. The indicator or measuring gage may be of any desired size andv configuration and is provided .with a body portion 12 preferably having stra-ight lateral edges'13 and 14 and is provided adjacent one end with an aperture 15 that is adapted to receive the post 11 of the rec-ord support. The body 12 is provided with a series of graduations 16 along one of its lateral edges and tions.

' these graduations are 'provided with suitable indicating characters 17. The graduations 16 are so spaced from eachother as to indi- -cate or measure the distance of the termination of the sound groove of the yrecord from the axis of rotation of the ldis-k or from the outside of the disk inwardly. .Inuse the gage is preferably placed inposition by passing the apertured endthereof over the post 11 so that thega-ge will restilat upon the disk and in this position the graduations or indications 16 will-indicatetlfie distance of the-groove from thevpost 111. A second series of vgraduations 18 having indicating characters 19 may also be provided on the body portion l2 preferably on the opposite side. of the body to the side von which the graduations 16 occur. The object in providing these two sets of graduations is to indicate or measurev the grooves ofthe different types of records, that is to say, one set'of graduations is adapted to measure the point of termination `of the sound grooves of the lateral wave type, while the otherset of Vgraduzdions is employed to measure thepoint of termination of the sound groove'from the axis of the rotation of the disk of the hill Y and dale type, or from the outside of the Y disk inwardly. ,y Cooperating with the indicator or gage just describedis any automatic brake or stop -device but for the purpose of illustrating VSamuel L. Schiff, SerialNo. 374,881.

The brake or stop device embodies a brake element 2O pivotally supported at 21 having one end 22 coperating with a latch 23 which latter is pivotally supported' as at 241 upon a base plate 25.v An indicator` arm 26 is 'pivotallv connected at 27 vwith the jplate 2'5 and the pointV of pivotal connection is so constructed that theindicator arm will be frictionally held in any of its adjusted posi- Thel indicator is provided withV a pointer 28 coperating with a gage 29 having a series of graduations 30 provided with a series of indications 31, and these indications 31 coperate with the indications 16 and l@ on the indicator or measuring gage l2. Mounted upon the indicator arm 26 is a tripping element 32 pivotally connected as at 34 with one end of the latch 28. in elastic member 35 connects the latch 23 and brake 20 and tends normally to move them in directions to become eiliective. A setting lever 36 is provided for setting the brake 2O in an ineiiqective position and in a position to be engaged and locked by the latch 23. The tripping element 32 and the setting lever SG are adapted to be actuated by an arm or linger 37 carried by the tone arm 38. ri handle 39 may be provided for moving the indicator arm 26.

When it is desired to use the present invention, the brake 2G is tripped by causing the arm or finger 37 to engage or move the tripping element 32 with respect to the indicator arm 26 and this will shift the latch 23 to allow the spring to cause trie brake to become eii'ective. rhe dish support Will then be maintained at rest The disk is then placed upon the support in the usual manner and the indicator or measuring gage when used in the manner as shown in the drawing is placed upon the disk in the manner already described, that is so that it will rest dat upon the dish with the post 1l projecting through the opening i5. rEhe operator then ascertains by the graduations 1G, or 1E, which ever set is in use, the exact distance 'from the axis of rotation of the dish to the end or the sound reproducing groove on the disk, which, in the illustration shoivn inig. l is indicated by the indication chan acter l0. Having ascertained this fact, the o )erator then swings the indicator aim 26 about its pivot 2'? until the point on the arm registers With the indications l() of the series 3l on the 29. llhis will adjust the end LO oi the tripping element 32 into a position that it will be engaged at the desired point in the movement or travelfoi'f the tone arm 38, so as to release the brake 23 at the proper point ,vhen the'stylus or needle has reached the end or the sound reproducing groove on the record.

lVhile trie preferred forni the invention has herein been shown and described, it is to be understood that various changes may be made therein and it is also to be understood that this de vice is Well adapted for use With any form of automatic brake or stop device for sound reoroducing machines.

lhat is c. a med as new is:

l. An indicator or measuring gage for use with disk records 'for measuring or indicating the peint ot termination of the sound grooves on the record, in combination with brake or stop mechanism, and means cooperating with the said indicator or gage whereby the said mechanism may be set to be correspondingly rendered active, the said means embodying a dial and pointer, said dial and indicating means having coperating graduations thereon. A

2. An indicator or measuring gage for use with dish records for measuring or indicating the point of termination of the sound grooves on the record, in combination with brake or stop mechanism, means cooperating With the said indicator or gage whereby the said mechanism may be set to be correspondingly rendered active, the said means embodying a dial and pointer, said dial and indicating means having cooperating graduations thereon, and separate series or' graduations on the said indicator or gage Whereby said indicator or gage will be adapted for use with diiierent types of disk records.l

3. An indicator or measuring gage for use with disk records for measuring or indicating the point of' termination of the sound grooves on the record, in combination with brake or stop mechanism, means embodying a dial and pointer cooperating With the said indicator or gage whereby the said mechanism may be set to be correspondingly rendered active, and means at one end of the indicator or gage for anchoring the same, the said dial and the indicator having cooperating graduations thereon.

4. in indicator or measuring gage for use with dish records `tor measuring or indicating the point of termination or' the sound grooves on the record, in combination With brake or stop mechanism, means rembodying a dial and a pointer cooperating with the said indicator or gage whereby the said mecgianism may be set to be correspondingly rendered active, the said dial and indicator yhaving cooperating' graduations thereon,

and means' at one end of the indicator or gage for temporarily anchoring said end, the last recited means embodying an aperture in the indicator or gage and into Which al tn re the disk holding post projects.

3. ln combination, a brake or stopy device Jfor sound reproducing machines, means for automatically rendering the same effective,

OTTO BOEHNERT. 

